CN214896214U - Improved photosensitive drum box - Google Patents
Improved photosensitive drum box Download PDFInfo
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- CN214896214U CN214896214U CN202121256678.8U CN202121256678U CN214896214U CN 214896214 U CN214896214 U CN 214896214U CN 202121256678 U CN202121256678 U CN 202121256678U CN 214896214 U CN214896214 U CN 214896214U
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- chip
- photosensitive drum
- boss
- drum cartridge
- drum box
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Abstract
The utility model discloses a sensitization drum box after improvement, sensitization drum box after this improvement includes: the chip comprises a PCB and at least one chip sensing area, and the chip sensing area is electrically connected with the printer; a chip placement area comprising: a chip card slot for placing a chip; the chip guide rail plays a role in guiding the insertion of the chip; the limiting part is integrally formed with the photosensitive drum box and is arranged at the bottom of the chip in the insertion direction; the guide device is at least two bosses which are arranged at intervals and comprises a first boss and a second boss. The utility model discloses the scheme of fixing on the sensitization drum box to the chip in the technical scheme provides a new chip fixed knot constructs, makes the installation and/or the change of chip more convenient.
Description
Technical Field
The utility model relates to an image forming apparatus particularly, relates to a sensitization drum box.
Background
An image forming apparatus such as a laser printer is provided with a photosensitive drum cartridge and a developing cartridge inside thereof. The developing cartridge and the photosensitive drum cartridge are important components in an image forming apparatus, and are internally provided with a toner hopper for supplying toner, and a charging roller, a photosensitive drum, a developing roller, and the like for transferring the toner onto paper. In addition, the photosensitive drum cartridge is also provided with a chip for storing print information of the process cartridge, the information stored by the chip varies depending on the model and/or function of the image forming apparatus, and generally includes information such as the amount of toner used. When the photosensitive drum cartridge and the developing cartridge are mounted to the image forming apparatus, the electrical connectors provided inside the image forming apparatus come into contact with the contacts on the chip, and the print information of the process cartridge is read. When the amount of the toner in the developing cartridge reaches a set value of the chip, the image forming apparatus stops working to prompt a user that the developing cartridge needs to be replaced.
According to the working process of the printer, the chip plays an important role in the working state of the photosensitive drum box and the developing box. In order to ensure good contact between the chip on the photosensitive drum box and the electrical connector, the integrated chip is usually fixed on the processing box by using screws and pins, but the screws have large installation torque and are easy to damage the chip. In order to solve the problem, a protective cover component is additionally arranged between the integrated chip and the screw by a certain manufacturer, however, the chip and the photosensitive drum box are required to reserve extra space for installing the screw and the protective cover by the installation mode, so that the number of installation parts is large, the assembly process is complicated, the product structure is complex, and correspondingly, the cost of the processing box is increased; in addition, some manufacturers use a snap structure to fix the chip, but the chip is easily dropped off due to the mounting method. Therefore, a process cartridge having a simple structure and easy to install is urgently needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sensitization drum box after the improvement, it can provide a new chip fixed mode, makes the chip installation more convenient with the change.
The utility model provides a sensitization drum box after improvement, include: the chip comprises a PCB and at least one chip sensing area, and the chip sensing area is electrically connected with the printer; the chip placement area includes:
a chip card slot for placing the chip;
the chip guide rail plays a role in guiding the insertion of the chip;
the limiting part is integrally formed with the photosensitive drum box and is arranged at the bottom of the chip in the insertion direction;
the guide device is at least two bosses which are arranged at intervals, and each boss comprises a first boss and a second boss.
Further, the width of the boss interval is equal to the width of one chip sensing area.
Furthermore, a bolt hole is formed in the PCB, and the width of the first boss is equal to that of the bolt hole.
Furthermore, the PCB board is provided with a screw hole, the second boss is arranged to be concave, the opening direction of the concave shape is back to the direction of the limiting part, and the screw hole can expose the opening.
Further, the boss is gradually reduced in width from the bottom to the top.
Further, the limiting part comprises a first limiting part and a second limiting part.
Furthermore, the second limiting part is provided with a chamfer.
The utility model provides a pair of sensitization drum box after improvement includes following beneficial effect at least: compare with traditional with the chip with bolt and fix with screw on sensitization drum box, the sensitization drum box after the improvement provides a new chip fixed knot and constructs, can directly insert the chip and place the region, spacing portion, chip guide rail and guider cooperate jointly to fix the chip in the draw-in groove to it is more convenient to make the installation and/or the change of chip.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of a photosensitive drum cartridge 10;
FIG. 2 is a schematic diagram of a partial explosion of the chip and the chip placement area in the drum cartridge 10;
fig. 3 is a partial front view of a chip placement area in the photosensitive drum cartridge 10;
fig. 4 is a partial plan view of a chip placement area in the photosensitive drum cartridge 10;
fig. 5 is a partial side view of the chip placement area in the photosensitive drum cartridge 10.
The reference numbers are as follows:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
202 | |
| 100 | Chip and method for manufacturing the same | 203 | Limiting |
| 101 | Chip induction area | 203a | A |
| 102 | |
203b | |
| 103 | |
204 | |
| 104 | |
204a | |
| 200 | |
204b | |
| 201 | Chip card slot |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, it should be considered that the combination of the technical solutions does not exist, and is not within the protection scope of the present invention.
As shown in fig. 1, the improved drum cartridge 10 of the present invention includes a chip 100 and a chip placement area 200.
The chip 100 shown in fig. 2 is a commercially available product, and includes at least one chip sensing region 101, a PCB board 102, a pin hole 103, and a screw hole 104. The chip sensing area 101 is provided with an electric contact which can be electrically connected with a printer to provide required printing information of the photosensitive drum box and control the printer to work normally. In the present embodiment, the type of chip shown in fig. 2 is taken as an example, and if chips of other types are adopted, the structure of the chip placement area 200 may be changed according to the structure of chips of other types.
As shown in fig. 2 to 5, the chip placement area 200 is provided with a chip card slot 201, a chip guide rail 202, a limiting portion 203 and a guide device 204 which are oppositely arranged. The chip guide rail 202 is disposed on a mounting wall (not shown) of the chip card slot 201, and the limiting portion is disposed at the bottom in the chip insertion direction to limit the insertion position of the chip.
In this embodiment, the guiding device 204 is integrally formed with the photosensitive drum cartridge 10, and is configured to guide the photosensitive drum cartridge to be correctly mounted on the printer, so that the chip detection probe on the printer can be guided to the electrical contact of the chip sensing area 101, and the printer can accurately read the printed information of the chip on the photosensitive drum cartridge.
Further, the guiding device is provided with at least two bosses. If the number of the bosses is two, the boss close to the limiting part is the first boss 204a, and the boss far away from the limiting part is the second boss 204 b. The interval between the boss is the width of a chip induction zone 101, and the chip induction zone can be complete to appear from between the boss, makes things convenient for the photosensitive drum to install into the printing information that the chip detection probe on the printer read the chip behind the printer. The number N of the bosses is more than or equal to 2, and the number of the bosses is determined according to the number of the chip sensing areas 101, that is, the number of the bosses can be adaptively modified according to the corresponding chip models. If only one chip sensing area exists in the selected chip models, the number of the bosses is two, and the chips can be fixed in the chip placing area 200.
In addition, if the number of the chip sensing areas is M and the number of the bosses is N, N is more than or equal to 2 and less than or equal to M + 1. That is, if the number of the chip sensing regions is 2, the number of the bosses may also be 2, and when the number of the bosses is 2, the positions of the bosses are disposed at positions close to the limiting portion 203 and far from the limiting portion 203, or the number of the bosses may also be 3; if the number of the chip sensing areas is 3, the number of the bosses can also be 2, and the bosses are arranged at positions close to the limiting part 203 and far from the limiting part 203 at the moment, or the number of the bosses can also be 3 and 4. So on, it is not repeated here.
In addition, in the present embodiment, as shown in fig. 3 and 4, the mounting walls on both sides of the chip card slot 201 are connected by the bosses, that is, the length of the bosses is the distance between the two mounting walls, but in another embodiment, the bosses may be provided in a structure (not shown) protruding toward the opposite mounting wall at the top of the mounting wall, and the protruding length is smaller than the length of the chip card slot 201 perpendicular to the insertion direction of the chip 100. Further, the boss may or may not be a structure disposed relatively on the photosensitive drum box 10, for example, the boss may not be disposed on the same mounting wall, but the boss may exist on both mounting walls, so as to ensure that the chip 100 can be fixed on the photosensitive drum 10, which is not repeated herein.
Further, the width of the first boss 204a is adapted to the width of the pin hole. The utility model discloses a make certain improvement to the sensitization drum box to the chip architecture on having the basis of chip in market, consequently the sensitization drum box after the improvement does not need the bolt hole as the scheme of fixed chip, and the width that adapts to the bolt hole is set to the width that will be close to the boss of spacing portion 203, and the purpose is in order to cover the bolt hole after installing the chip on the sensitization drum box, and is more pleasing to the eye in the vision.
Further, the second boss 204b is concave, and the opening direction of the concave is the direction back to the limiting portion 203, and the existing screw hole on the chip can be exposed at the opening. The utility model discloses a make certain improvement to the sensitization drum box to the chip structure on having the basis of chip in the market, though sensitization drum box after the improvement does not need the screw connection as fixing the mode on the sensitization drum box with the chip, and the boss that will keep away from spacing portion 203 sets up to "concave" shape and is for the convenience of customers can be enough to indicate to insert the chip or take out the chip when the installation or change the chip, and the convenience of customers installs and changes the chip.
Further, the bosses are provided in a structure in which the width is gradually reduced from the bottom to the top. Compared with a structure that the boss is arranged to be consistent in width from the bottom to the top, after the photosensitive drum box is installed in the printer, the chip detection probe on the printer can be guided to accurately contact the chip sensing area 101 by the structure of the boss, and the printer can read and print information more quickly.
As shown in fig. 3 and 4, the stopper portion 203 is formed integrally with the photosensitive drum cartridge 10, and the stopper portion 203 is provided at the bottom in the chip insertion direction to restrict the insertion position of the chip.
Further, the position-limiting portion 203 includes a first position-limiting portion 203a and a second position-limiting portion 203 b. The distance between the surface of the first limiting portion 203a facing the guiding device and the boss close to the limiting portion 203 is determined by the chip sensing area 101 and the PCB 102, and when the chip 100 abuts against the first limiting portion 203, the chip sensing area can just be exposed in the boss. The distance between the surface of the second position-limiting part 203b facing the chip 100 and the guide means is determined by the thickness of the PCB board 102. In the process of inserting the chip 100, when the chip 100 abuts against the first position-limiting portion 203a, the chip 100 has reached the mounting position; the second limiting portion 203b is used as a support to support the chip 100 in the chip card slot, the limiting portion 203 cooperates with the chip guide rail 202 to fix the chip 100 on the photosensitive drum box, and at this time, the chip 100 is in interference fit with the chip guide rail 202.
Further, the second stopper portion 203b is provided with a chamfer (not shown). In the insertion process of the chip 100, when the chip 100 is about to contact with the limiting portion 203, the chip can enter the gap between the second limiting portion 203b and the guide device 204 more accurately and rapidly through the chamfer of the second limiting portion 203b, and the working efficiency of a user is improved. The first position-limiting portion 203a may also be provided with a chamfer for aesthetic reasons.
Further, as shown in fig. 3 and 4, the length of the stopper portion 203 in the vertical chip insertion direction is smaller than the length of the card slot in the vertical chip insertion direction, and in another embodiment, the length of the stopper portion 203 in the vertical chip insertion direction may be the length of the card slot in the vertical chip insertion direction (not shown).
In the process of mounting the chip 100 to the photosensitive drum cartridge 10, the chip 100 is inserted into the chip card slot 201 along the chip guide rail 202, and when the chip 100 abuts against the stopper portion 203, the insertion is stopped. Comparing traditional mounting method, being about to the bolt hole alignment on the photosensitive drum box of chip 100 bolt, reuse screw fixes the chip at the photosensitive drum box, and the improvement of making in this embodiment only utilizes the cooperation between chip guide rail 202 and the spacing portion 203, can be with stable the fixing on photosensitive drum 10 of chip 100, and more convenient, swift, has improved user's work efficiency.
Above-mentioned embodiment and drawing are the improvement made to corresponding sensitization drum box according to a chip model, if the chip of other models of use, also can pass through the technical scheme of the utility model improve corresponding sensitization drum box.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (7)
1. An improved photosensitive drum cartridge detachably mountable to a printer,
the photosensitive drum cartridge includes: a chip and a chip placement area;
the chip is detachably arranged in the chip placing area and comprises a PCB and at least one chip sensing area, and the chip sensing area is electrically connected with the printer;
the chip placement area includes: a chip card slot for placing the chip; the chip guide rails are arranged on two sides of the chip clamping groove; the limiting part is integrally formed with the photosensitive drum box and is arranged at the bottom of the chip in the insertion direction; the guide device is at least two bosses which are arranged at intervals, and each boss comprises a first boss and a second boss.
2. A photosensitive drum cartridge according to claim 1, wherein a width of said boss interval is equal to a width of one of said chip sensing areas.
3. A photosensitive drum cartridge according to claim 2, wherein said PCB board is provided with a latch hole, and a width of said first boss is equal to a width of said latch hole.
4. The photosensitive drum cartridge according to claim 2, wherein a screw hole is provided on the PCB, the second boss is provided in a "concave" shape, an opening direction of the "concave" shape is a direction facing away from the position-limiting portion, and the screw hole is exposed in the opening.
5. A photosensitive drum cartridge according to claim 2, wherein said boss is gradually reduced in width from the bottom to the top.
6. A photosensitive drum cartridge according to claim 1, wherein said position restricting portion includes a first position restricting portion and a second position restricting portion.
7. A photosensitive drum cartridge according to claim 6, wherein said second stopper portion is provided with a chamfer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121256678.8U CN214896214U (en) | 2021-06-07 | 2021-06-07 | Improved photosensitive drum box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121256678.8U CN214896214U (en) | 2021-06-07 | 2021-06-07 | Improved photosensitive drum box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214896214U true CN214896214U (en) | 2021-11-26 |
Family
ID=78934392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121256678.8U Active CN214896214U (en) | 2021-06-07 | 2021-06-07 | Improved photosensitive drum box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214896214U (en) |
-
2021
- 2021-06-07 CN CN202121256678.8U patent/CN214896214U/en active Active
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